390752616 has 64 divisors (see below), whose sum is σ = 1036540800. Its totient is φ = 122329088.

The previous prime is 390752611. The next prime is 390752647. The reversal of 390752616 is 616257093.

It is not an unprimeable number, because it can be changed into a prime (390752611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 302500 + ... + 303788.

It is an arithmetic number, because the mean of its divisors is an integer number (16195950).

Almost surely, 2^390752616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 390752616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (518270400).

390752616 is an abundant number, since it is smaller than the sum of its proper divisors (645788184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

390752616 is a wasteful number, since it uses less digits than its factorization.

390752616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2058 (or 2054 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 390752616 is about 19767.4635702206. The cubic root of 390752616 is about 731.0840315280.

The spelling of 390752616 in words is "three hundred ninety million, seven hundred fifty-two thousand, six hundred sixteen".